HeyGen vs Synthesia: Trust Facts Side by Side
At a glance: verified facts
| Fact | HeyGen | Synthesia |
|---|---|---|
| Operated by | HeyGen Technology Inc. | Synthesia Ltd |
| Country | United States | United Kingdom |
| Founded | 2020 | 2017 |
| Founders public | Yes | Yes |
| Official iOS app | ✓ AI Avatar Generator - HeyGen | — |
| Policy changes we track | 12 detected (2 major) | 9 detected (3 major) |
| Last data check | 2026-11-01 | 2026-11-01 |
From public records (company registry, RDAP, App Store metadata) and our policy snapshots — a "—" means we have no verified data for that field yet.
What we checked
Both are ai avatar & talking-head video tools we track. We have sourced facts for HeyGen on 4 of 5 areas and for Synthesia on 4 of 5. The tables on this page set them side by side; we don't pick a winner. An area without sourced facts is not yet checked, and is left blank rather than guessed.
Quick verdicts
HeyGen: HeyGen was checked on 4 of 5 trust dimensions using public records. Evidence found for: company & identity, data & privacy, billing & subscription, community reputation. Not yet assessed: product reality.
Synthesia: Synthesia was checked on 4 of 5 trust dimensions using public records. Evidence found for: company & identity, data & privacy, billing & subscription, community reputation. Not yet assessed: product reality.
What their privacy policies say about AI training
HeyGen (policy captured 2026-10-29):
HeyGen acts as a data controller when processing personal data for its own independently determined purposes, including account administration, platform security, service improvement, AI model training, analytics, and marketing, as further described in Section 4.
Quoted verbatim from each vendor's own privacy policy — full context and more excerpts on each tool's report page.
Frequently asked questions
Is HeyGen legit?
HeyGen is operated by HeyGen Technology Inc.. We have sourced facts on 4 of 5 areas so far, each linked to its source on the full report. Anything not yet checked is marked as pending.
Is Synthesia legit?
Synthesia is operated by Synthesia Ltd. We have sourced facts on 4 of 5 areas so far, each linked to its source on the full report. Anything not yet checked is marked as pending.
How this comparison works
Both tools are checked on the same five areas — company identity, data privacy, billing, product reality and reputation — using documented evidence only; an area with no evidence stays unchecked instead of guessed. Read the full reports: HeyGen trust report · Synthesia trust report, or run any other tool through the trust check.